Digital Wireless Rear View Backup Camera System, 7" LCD Monitor+1 Reverse Camera Digital Wireless Monitor Camera Systemare widely used in RV, Trailer,Fifth-Wheel,public transport buses, long-distance passenger buses, school buses, farm tractors , heavy cargo trucks, rail vehicles , municipal road machinery machine equipment vehicles, airport equipment vehicles , port crane machinery and forklifts , security escort vehicles, fire and ambulance vehicles , factories supermarket forklifts Operation Frequency:2400 ~ 2483.5MHz. More Band optional, Protect you from the interference of other Frequency easily. 7"Digital Screen TFT LCD Monitor Built-in 2.4GHz Digital Wireless Receiver Monitor support full/spilt screen 2.4GHz Digital Wireless Camera Aluminum Camera IP69K Waterproof and 10G Vibration, IR LEDs for Night Vision